PartsTable TECHNICAL DATA SHEET

NSN 4820-01-287-4014Government record, cited

Valve, Vent4820-01-287-4014

NSN 4820-01-287-4014 · NIIN 012874014 · Part number B-4584-0

Morrison Brothers Co Dba Morrison Brothers Co · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 41592

Government record, cited

NSN 4820-01-287-4014 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-287-4014. Manufacturer of record part number: B-4584-0.

Also searched as 4820-01-287-4014 · 4820012874014 · NIIN 012874014 · 01-287-4014 · FSC 4820 Valves, Nonpowered · CAGE 41592 · B-4584-0 · FIG 153-B 2.5IN · 510-2235 ITEM 6 · 510-2235

Nearby stock numbers ← 4820-01-287-4013 Valve, Ball · 4820-01-287-4015 →

4820-01-287-4014 — Valves, Nonpowered

Features

Valve,vent — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: Morrison Brothers Co Dba Morrison Brothers Co

Identification

NSN: 4820-01-287-4014
NIIN: 012874014
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: B-4584-0
Manufacturer: Morrison Brothers Co Dba Morrison Brothers Co

General Description

The Valve,vent, cataloged under National Stock Number 4820-01-287-4014, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Morrison Brothers Co Dba Morrison Brothers Co. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Valve,vent
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Morrison Brothers Co Dba Morrison Brothers Co (CAGE 41592); Tyco Fire Products Lp (CAGE 03670)

Technical Specifications

Parameter	Value
NSN	4820-01-287-4014
Primary Part Number	B-4584-0
Item Name	Valve,vent
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Morrison Brothers Co Dba Morrison Brothers Co
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
B-4584-0 PRIMARY	Morrison Brothers Co Dba Morrison Brothers Co (USA)
510-2235 ITEM 6	Tyco Fire Products Lp (USA)

Reference documents

Reference	Meaning
FIG 153-B 2.5IN	C/1 Advisory reference — outside the item-of-supply concept Morrison Brothers Co Dba Morrison Brothers Co
510-2235	D/9 Drawing number reference only Tyco Fire Products Lp

No interchangeability data on file.

Other items in FSC 4820 — Valves, Nonpowered

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4820-00-000-0097

4820-00-000-0097 · Item name not on file

4820-00-001-0010

VALVE,ROTARY,SELECTOR

4820-00-001-0020

4820-00-001-0020 · Item name not on file

4820-00-001-0021

4820-00-001-0021 · Item name not on file

4820-00-001-0032

4820-00-001-0032 · Item name not on file

4820-00-001-0037

VALVE,SAFETY RELIEF

4820-00-001-0042

4820-00-001-0042 · Item name not on file

4820-00-001-1230

4820-00-001-1230 · Item name not on file

Frequently Asked Questions

What is NSN 4820-01-287-4014?

NSN 4820-01-287-4014 is a Valve,vent, manufactured by Morrison Brothers Co Dba Morrison Brothers Co, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-287-4014?

NSN 4820-01-287-4014 has 2 manufacturer part numbers on file: B-4584-0 (Morrison Brothers Co Dba Morrison Brothers Co), 510-2235 ITEM 6 (Tyco Fire Products Lp).

Is NSN 4820-01-287-4014 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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